You can get C7 HUD Car Head-Up Display GPS Speedometer for $27.89 with coupon (from Banggood). Price history, coupons and price alert are available on this page. Best price?
C7 HUD Car Head-Up Display GPS Speedometer Compass Driving Distance Speed Time Driving Time Date Altitude Number Of Compass Overspeed Alarm Fatigue Driving Satellites Reminder
Latest coupon code price check (UTC time):
Banggood ($27.89)
Banggood warehouse is located in China. You probably want to know if this is a good price. Hmmm, price is higher than average (which is $27.79 right now), so better set price alert down below… I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Price without coupon: $28.99
1. ($27.89): BGAMMT03
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGbfa5e8
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for C7 HUD Car Head-Up Display GPS Speedometer.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).